Questions tagged [pyqt4]
python bindings for Qt4
65
questions
0
votes
2
answers
152
views
How to make my plugin dialog window open as QGIS default plugins?
Actually I mean that:
As you can see, I make my own plugin and qgis opened my dialog window like second window.
I need somthing like this:
Here is Validity Check plugin. This is QGIS internal plugin ...
- 25
3
votes
1
answer
1k
views
Developing QGIS plugin: AttributeError: object has no attribute
I was tasked with making a small plugin for QGIS or add a small functionality to an existing one.
What I am trying to do is take the "geocode with web service" from the plugin MMQGIS
and add ...
2
votes
1
answer
521
views
How to display table content using Qtableview after selecting a vector layer in Pyqt4?
I'm developing a QGIS plugin using QtDesigner and pyqt4.
I have a comboBox of my vector layers and I want to show the table of the selected layer.
I used this code for my comboBox:
def run(self):
...
- 51
3
votes
0
answers
122
views
How to make buttons work from second window in my QGIS plugin?
I'm trying to develop a QGIS plugin. I already created a second window. In that second window, there are several buttons that I need them to work. I can't say I'm a programmer that's why I don't ...
- 51
1
vote
1
answer
4k
views
How to change the particular letter color in text box using python
I need to highlight the particular letter in a text box using Python.
I am using the below code but it changes the entire text color in text box.
Can you suggest any other ideas?
I am using both ...
2
votes
1
answer
454
views
Tableview with 2 columns
I'm using QlistView to show my names of departement in the studied area after using the 'extract by location' processus:
# res=QgsVectorLayer()
# capture département inside the studied area :
...
- 43
2
votes
0
answers
145
views
How to capture the event whenever the items inside a listview are checked
I'm developing a plugin in QGIS 2.8.2 using Pyqt 4.
Well the idea is using the processing 'qgis:extractbylocation' from the QGIS algorithm provider to capture the studied area
# Récupérer tous les ...
- 43
2
votes
1
answer
1k
views
How do I call the objects created with QtDesigner (or QtCreator) in my code in python? Where is this information in python? PyQt4 please
Where can I find a good documentation on how to refer (to call) to the Dialog created with QtDesigner? For example, a buttomBox (or any other) just created. I’m trying to make a plugin, but the ...
1
vote
0
answers
95
views
Blank MapCanvas Window [closed]
I am constructing a GUI using PyQT4 and QGis. Rigth now I can open the MapCanvas whith same buttons of Zoom In/Out using this code:
from qgis.gui import *
from qgis.core import *
from qgis.PyQt.QtGui ...
- 19
4
votes
1
answer
628
views
How to get QGIS canvas in plugin window? [closed]
I'm working on project where I need insert QGIS canvas as a widget in QGIS plugin. When user click on button it should be loaded into widget. Something like this, this is example where satellite map ...
- 145
1
vote
0
answers
27
views
Replicating the Layers Panel in my app, with sub-layers [closed]
I've followed this post, using the QGIS Desktop Python Console, to create color ranges for my vector layer. QGIS displays a nice selectable tree in the Layers Panel.
Now I want to develop my own app, ...
2
votes
2
answers
1k
views
QGIS2 to QGIS3 plugin migration issue AttributeError: type object 'QObject' has no attribute 'connect' [duplicate]
I am trying to migrate a plugin. I have these two lines:
QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), Configuration.accept)
QtCore.QObject.connect(self.buttonBox, ...
- 1,443
1
vote
1
answer
1k
views
Trying to find the Qt5 version of QVBoxLayout
Migrating a plugin and started getting the error AttributeError: module 'qgis.PyQt.QtGui' has no attribute 'QVBoxLayout' I cannot find this one in the API changes I tied using qgis.PyQt5.QtGui but ...
- 1,443
1
vote
0
answers
252
views
How to find which direction to flow between two points in QGIS Python? [closed]
I want to find which way direction to go based on two points and line segment.
I have two layer line layer and point layer.user selects the two points in lines layer.
I have to find which direction to ...
- 59
4
votes
1
answer
1k
views
TypeError: qRegisterResourceData(int, bytes, bytes, bytes): argument 2 has unexpected type 'str'
Similar question here, I tried the suggested answer but it didn't work for my situation.
updating plugin from qgis 2 to 3. qRegisterResourceData . argument 2 has unexpected type 'str'
I am ...
- 1,443
1
vote
0
answers
133
views
QGIS 2.18 - Can't get click coordinates from mapCanvas
Trying to get click coordinates from map canvas but code is not working. Newbie for Python, pyqgis, pyqt
I already check these topics but still code is NOT working
1 - QGIS 3 Get coordinates from ...
- 123
1
vote
0
answers
40
views
Resizing QGIS custom form
I have followed this tutorial to create custom forms in QGIS (I work with version 2.18). However, I seem to be unable to control the shape and size of the form window. Thus, widgets are frequently out ...
- 11
1
vote
1
answer
2k
views
Adding x,y labels in QGraphicsview using pyqt4? [closed]
Here is my sample program. When I need to draw a line for x axis and y label for y axis .so can any one help me how to add a line and labels to scene.i tried different ways but i didn't get the proper ...
- 11
15
votes
1
answer
1k
views
Showing startup-messages on QGIS splashscreen
During the startup of QGIS, there are status messages shown in the lower part of the splashscreen like "restoring loaded plugins".
I am using a startup.py feature from which I would like to inform ...
- 8,714
6
votes
1
answer
848
views
Change background color of Layer in the TOC / QgsLayerTreeLayer with pyqgis
I would like to change the background-color (or font color) of some items in the TOC of QGIS:
Example-Mockup:
I tried several ways but nothing did the trick so far:
layer_list = QgsProject.instance(...
- 8,714
3
votes
0
answers
87
views
How can I get real time log in .bat file at QGIS & PlugIn with Python PyQT4
I try to get real time log in batch file with python, then show it to QGIS Plugin real time. ( .bat file have run -jar file )
I success logging but not real time log in QGIS because QGIS is stopped ...
- 31
0
votes
1
answer
2k
views
QgsMapCanvas has no attribute 'setLayers'?
I would like to construct a GUI using PyQt4 and qgis outside of the main QGIS application. I found this tutorial which provides some indications on how to do this. I am looking to build something ...
- 3,494
0
votes
1
answer
220
views
Using Stealth QDockWidget?
I'm playing with QDockWidgets. Here is the piece of code i'm trying :
def dock(self):
widget = uic.loadUi("C:\dock.ui")
self.iface.addDockWidget(Qt.RightDockWidgetArea, widget)
widget....
- 5,703
0
votes
1
answer
3k
views
Running Python produces 'No module named 'PyQt4' in Qgis on Mac High Sierra
I was following the instructions in this guide: Create a Polygon Shapefile from Point data and fairly sure I substituted field variables to match my data. However, when I run the script on my Mac (...
- 11
2
votes
1
answer
352
views
Error Accessing Dockwidget ComboBox. QGIS Plugin. (pyqgis)
I'm writing a QGIS plugin but I'm facing some basic problems. The plugin is a dockwidget. I've built it with plugin Builder and then compiled the resources file.
When I try to access the comboBox to ...
- 975
3
votes
1
answer
377
views
How to monitor changes in layers panel for QGIS?
I'm writing Python script in QGIS 2.18 to alert the user when multiple layers with different projections are added to the canvas. My codes are shown below.
from qgis.gui import QgsMessageBar
...
- 115
1
vote
0
answers
746
views
ValueError: Attempted relative import in non-package
I run myscript and get this error:
from qgis.core import * # @UnusedWildImport
from qgis.gui import * # @UnusedWildImport
from PyQt4.QtCore import * # @UnusedWildImport
from PyQt4.QtGui import * # @...
- 1,571
0
votes
1
answer
1k
views
QGIS 2.18 ImportError: DLL load failed: The specified module could not be found
I try to run the QSwat script and it begins with that:
from PyQt4.QtCore import * # @UnusedWildImport
from PyQt4.QtGui import * # @UnusedWildImport
from qgis.core import * # @UnusedWildImport
from ...
- 1,571
1
vote
0
answers
1k
views
Import Error: PyQt4 disabled by IPython, incompatible QT binding
I'm running QGIS 2.14 and trying to learn how to develop python standalone scripts. Currently I am using Canopy's (v 2.1.3.3542) distribution of Python 2.7. My development is on a Mac (OS 10.13.1) ...
- 103
1
vote
0
answers
251
views
Implementing signals on add feature with PyQGIS?
I'm trying to implement the code below to run when adding a feature in the layer, but nothing happens even an error message.
However when I call the method directly, the routing is executed normally.
...
- 161
13
votes
3
answers
7k
views
Make QGIS python plugin for both versions 2.x and 3.x?
I am in the process of migrating a QGIS python plugin from QGIS 2 to QGIS 3, and browsing various resources.
It's not clear if it's possible to have the plugin compatible with both versions or if it'...
- 879
6
votes
2
answers
31k
views
How to add a filter to “QFileDialog.getOpenFileName” [closed]
I would like to add a filter to the following code in order to select only the “CSV files”, but I did not succeed:
def filePath(title):
qfd = QFileDialog()
path = "D:\ennine\SIG HTB\BGN"
...
- 863
2
votes
2
answers
613
views
Keep track of current layers in PyQt plugin for QGIS
I have a QGIS plugin which has a combobox (QComboBox) element with a list of layers currently opened in QGIS. The problem is that the layer list is only updated on initialization of the plugin (I do ...
- 3,533
8
votes
2
answers
3k
views
Get the identified feature
I use QgsMapToolIdentifyFeature to trap the featureIdentified signal, so i can get some information from the identified feature and show it in a panel within my plugin.
here is the code, my problem ...
- 432
3
votes
2
answers
981
views
Plugin crashes QGIS 2.18 if running simuntaneously with python console
I'm currently developing plugin for QGIS 2.18. From the begining I'm having the same issue. QGIS 2.18 crashes if I run python console while plugin is working something.
I saw that print statements ...
- 101
2
votes
1
answer
174
views
How to display messages in the QGIS log from within a QTimer callback?
So I'm new to QGIS and Qt, and trying to write a simple toy python plugin. I'm trying to get the plugin to do "stuff" at regularly timed intervals, and to test, I'm just trying to get the script to ...
user41428
2
votes
1
answer
92
views
Follow current line in attribute table?
I would like to teach the QGIS map canvas to follow the current row of an attribute table. I found the method QgsAttributeTableView.currentChanged() as possible starting point, but unfortunately it's ...
- 2,050
2
votes
1
answer
2k
views
Create a upload button in PyQt QGIS plugin
I want to create 2 upload file button in PyQt.
One for image and one for .csv file.
If the uploaded file is not in image or .csv file it should thrown an message.
I have search a lot on internet and ...
- 51
1
vote
1
answer
253
views
QTest interactions with the QGIS Map canvas
Is it possible to simulate right or left mouse button clicks on a QGIS map canvas. Currently writing tests for a plugin and need to be able to create a line geometry thorough the use of theses ...
- 19
2
votes
0
answers
616
views
QTableWidget Resize with Dialogue Python QGIS
I am developing python qgis plugin with QTableWidget inside a tabWidget. How can i set my QTableWidget size and QTabwidget with the Dialogue box. So that when someone expand the dialogue box of the ...
- 2,271
3
votes
1
answer
612
views
How to use processing in a PyQT plugin in QGis
I am writing a QGis plugin with UI that should utilize certain QGIS processing tools when the user runs the plugin.
Now I tried a lot, searched a lot and came along quite many different approaches. ...
- 61
1
vote
1
answer
77
views
Modifying the copy coords plugin
I want to modify the copy_coords plugin such that when I click on it, It should open a dialog box and ask for a file name and address. After this it should store all the points I click on into that ...
- 197
3
votes
1
answer
1k
views
QGIS plugin fields will not reset
I am new to PyQGIS and PyQT programming.
I have built a small QGIS plugin, which uses the NetworkX library to do some processing of shapefiles. The form executes it's business logic correctly, but ...
- 331
2
votes
0
answers
242
views
Error While Fetching Data From Postgres In Qgis Plugin
i am trying to fetch data from postgres in qgis and the connection code is working fine in python console but it gives error when i apply that code to my plugin like..
AttributeError: 'NoneType' ...
- 189
2
votes
2
answers
386
views
Getting Error While Parsing Feature To The lineEdit In Python
am getting error while parsing a selected feature to the lineEdit like, QLineEdit.setText(QString): argument 1 has unexpected type 'long'
layer = self.iface.activeLayer()
h = layer....
- 189
2
votes
1
answer
2k
views
Converting GeoTIFF file to numpy array to QPixmap with PyQt4?
I'm a student in CS doing an internship and I'm not familiar at all with GIS yet.
I have to display a GeoTIFF image (with a single band) into a QPixmap with PyQt4. So, I found some code that could ...
- 41
2
votes
0
answers
264
views
QGIS Profile Tool dependencies
I'm trying to install the Profile Tool on QGIS 2.14 (newest version present in ubuntugis ppa) and i get this error:'No module named PyQt.QtCore'
I have installed the following packages:python3-pyqt4,...
3
votes
1
answer
752
views
Error inside pyinstaller app with pyqgis & pyqt4 on Windows
I am trying to generate a standalone exe using the pyqgis and related libraries.
I have borrowed from the app in the book 'Building Map Applications with QGIS', by Erik Westra and published by PACKT.
...
- 727
2
votes
1
answer
720
views
error sip.setapi(api, 1) in pyQGIS
I have installed QGIS via osgeo4w 32 bit yesterday, to take pyqgis api in standalone script, but I have some problems.
I have python 2.7.13 32bit and pyqt4 installed from Gohlke. After, I created a ...
- 1,061
3
votes
1
answer
2k
views
Check if QLineEdit is NULL on a custom form?
I have a custom form with some validation.
One these validation is if the value of attribute is NULL.
The value of NULL representation on the QGIS is float according of the Configure->Options.
How ...
- 498